Luminaire and lamp apparatus housing

Abstract

According to one embodiment, a lamp apparatus includes a light-emitting module, housing, and a lighting circuit. The light-emitting module includes a light-emitting element. The housing opens in the direction of irradiation of a light beam and having a cap on a side opposite from the direction of irradiation of the light beam. The cap is provided with a light-emitting module mounting portion projecting in the direction of irradiation of the light beam and the light-emitting module is mounted on the light-emitting module mounting portion. The lighting circuit is accommodated in the housing.

What is claimed is: 
     
       1. A lamp apparatus comprising:
 a light-emitting module including a light-emitting element; 
 a housing having a case formed of resin and opening in a direction of irradiation of a light beam emitted by the light-emitting element, and a cap disposed on a side of the case opposite from the direction of irradiation of the light beam, the case including an annular projecting portion projecting in a direction opposite from the direction of irradiation of the light beam, the cap including a cap member formed of a metal and arranged on an end face of the projecting portion, the cap member includes a light-emitting module mounting portion having a lower surface to which the light-emitting module is mounted, the cap member having an upper surface that is larger than the lower surface; and 
 a lighting circuit accommodated in the housing. 
 
     
     
       2. The apparatus according to  claim 1 , wherein the cap includes lamp pins projecting from the case in the direction opposite from the direction of irradiation of the light beam. 
     
     
       3. The apparatus according to  claim 1 , wherein the upper cap surface of the cap member is thermally connected to a connecting surface of a luminaire, and
 the cap surface includes a heat conductive sheet having a silicone sheet adhered to the upper cap surface and a metal foil adhered to the silicone sheet. 
 
     
     
       4. The apparatus according to  claim 3 , wherein the thickness of the heat conductive sheet is in a range from 0.1 to 0.5 millimeters. 
     
     
       5. The apparatus according to  claim 3 , wherein the heat conductive sheet is formed into a polygonal shape. 
     
     
       6. The apparatus according to  claim 3 , wherein a surface area of the heat conductive sheet is larger than a surface area of the light emitting module mounting surface of the light-emitting module mounting portion. 
     
     
       7. The apparatus according to  claim 3 ,
 wherein the cap surface is formed with a depression configured to accommodate part of the heat conductive sheet in a thickness direction, the depression further including a space portion between the cap surface and a peripheral portion of the heat conductive sheet. 
 
     
     
       8. A luminaire comprising:
 apparatus according to  claim 1 ; 
 a socket configured to mount the cap of the lamp apparatus; and 
 a heat radiator to which the cap to be mounted on the socket is thermally connected. 
 
     
     
       9. A luminaire comprising:
 a lamp apparatus according to  claim 3 ; 
 a socket configured to allow the cap of the lamp apparatus to be mounted thereon by fitting and rotating the cap by a predetermined angle; and 
 a heat radiator including the connecting surface to which the cap to be mounted on the socket is thermally connected via the heat conductive sheet. 
 
     
     
       10. A luminaire comprising:
 a lamp apparatus according to  claim 1 ; 
 a socket configured to allow the cap of the lamp apparatus to be mounted thereon by fitting and rotating the cap by a predetermined angle; 
 a heat radiator including a connecting surface to which the cap to be mounted on the socket is thermally connected; 
 a heat conductive sheet interposed between the connecting surface and the cap when the connecting surface and the cap are thermally connected; and 
 a depression formed on at least one of the cap and the connecting surface, configured to accommodate part of the heat conductive sheet in a direction of the thickness, and having a space portion between a peripheral portion of the heat conductive sheet and the depression.